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United States Patent | 6,053,865 |
Sugiyama ,   et al. | April 25, 2000 |
A retinal disease analyzer processes data obtained by processing a color retinal image and measured visual field data provided by a perimeter to detect the condition of the optic disc and defects in the nerve fiber bundles for the clinical analysis of the condition of the optic disc and the defects in the nerve fiber bundles, and combines detected information on a fundus coordinate system taking into consideration the arrangement of the nerve fiber bundles for the comprehensive analysis of the condition and the degree of progress of glaucoma. The detected information is analyzed on the basis of the distribution pattern of the nerve fiber bundles or the corresponding fundus coordinate system to integrate all the data for analysis. The condition and the degree of progress of glaucoma can be determined on the basis of the integrated data.
Inventors: | Sugiyama; Akihiro (Tokyo, JP); Moriyama; Takuya (Tokyo, JP); Ichiki; Hiroshi (Tokyo, JP) |
Assignee: | Kabushiki Kaisha Topcon (Tokyo, JP) |
Appl. No.: | 009769 |
Filed: | January 20, 1998 |
Sep 21, 1993[JP] | 5-259088 | |
Sep 21, 1993[JP] | 5-259089 | |
Sep 21, 1993[JP] | 5-259090 |
Current U.S. Class: | 600/300 |
Intern'l Class: | A61B 005/00 |
Field of Search: | 600/300,407,473-477 351/200,206,211 228/897,898 |
5058596 | Oct., 1991 | Makino et al. | 600/476. |
5233517 | Aug., 1993 | Jindra | 364/413. |
5270924 | Dec., 1993 | Hideshima | 364/413. |
5303709 | Apr., 1994 | Dreher et al. | 600/476. |